#include <iostream>
#include "func.h"

int main() {
    // 编写测试用例
    int result = my_square(3);
    if (result == 9) {
        std::cout << "Addition test passed!\n";
        return 0; 
    } else {
        std::cout << "Addition test failed!\n";
        return 1; 
    }
}